FB post comments automation

On a Windows PC: 1. Read tab 1, line 1, column A from the xls file. It will contain the FB status url where we need to post comments 2. Read tab 2, line 1, column A (email) and B (password) from the xls file. 3. Enter theses credentials on the FB website in order to log in 4. Read tab 3, take one random line (a comment) – note: a comment should not be posted more than one time! - 5. Post this comment to the post specified in step 1 6. Logout 7. Wait between 3 and 5 minutes 8. Process the same steps again from #2, same column, next line from the tab 2 9. When everything is done, send an email with report (tab 1, column A, line 2) Notes: • If the script cannot log in successfully two times consecutively (FB verifications blocking the process for ex.), stop the whole process and send a report by email (tab 1, column A, line 2) • I need a proof that credentials are not sent anywhere and are only used to log in on the website